Valve



'. T. D. LEWIS.

VALVE.

APPLICATION FILED JAN. 9, 1920.

1,384,668. Patented July 12, 1921.

3 $HEETSSHEET l.

INVENTOR.

Z720 maafl 62075 ATTORNEY.

WI TNESS:

T. D. LEWIS.

VALVE.

APPLICATION FILED JAN.9,1920.

1,334,668. Patented July 12,1921.

'3 SHEETS-SHEET 2.

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QM 11 2072813817 lama? MM 23 MM ATTORNEY.

WITNBSES T. D. LEWIS.

VALVE.

APPLICATION FILED JAN. 9, I920.

Patented July 12,- 192 1.

3 SHEETS-SHEET 3- L 5 INVENTOR ATTORN EY UNITED STATES THOMAS D. LEWIS, OF SCRANTON, PENNSYLVANIA.

VALVE.

Specification of Letters Patent.

Patented July 12, 1921.

Application filed January 9, 1920. Serial No. 350,321.

To aZZ whom-it may concern:

Be it known that I, THOMAS D. Lnwrs, a citizen of the United States, residing at Scranton, in the county of Lackawanna and State of Pennsylvania, have invented new and useful Improvements in Valves, of which the following is a specification.

The general object of my present invention is to so improve the compound valves of feed water injectors that wear may be ade quately taken up by grinding the main valve body and the priming valve body, and the said grinding may be compensated for, and in that way the usefulness of the costly forcing valve as a whole may be materially prolonged.

Another object of the invention is the provision of improved means whereby the priming valve body may be secured 1n advanced position relatively to the main valve body for the proper grinding of the said priming valve body.

To the attainment of the foregoing, the invention consists in the improvement as hereinafter described and definitely claimed.

In the accompanying drawings, hereby made a part hereof:

Figure 1 is a side elevation of my improvement complete.

Fig. 2 is a detail elevation of the'maln valve body and the priming valve body, showing the cotter in diametrically in position to hold the priming valve body against endwise movement relatively to the main valve body for the proper grinding of sai priming valve body.

Fig. 3 is a diametrical section through the connected main valve body and priming valve body.

Fig. 4 is a similar view taken at right angles to Fig. 3.

Fig. 5 is a transverse section taken through the connected valve bodies in the plane of the ribbed portion of the main valve body.

Fig. 6 is a diametrical section taken through the stem, the compensating collar sections and the chamber in the main valve body in which said collar sections are disposed.

Fig. 7 comprises collar sections for use interchangeably with those shown in Fig. 6.

Fig. 8 is a View showing my improvement positioned for grinding in an injector or inspirator.

Similar numerals of reference designate corresponding parts in all of the views of the drawings.

The stem 1 is designed to be operated in the'usual manner, and is provided adjacent to its inner end with a circumferential groove 2. The said stem is carried through a gland 3 that is detachably secured in the main valve body 4 and closes the chamber 5 1n said body. The said chamber 5 is in one end of the body, and in the opposite end of the body is a longitudinal-central bore 6 that is surrounded by a longitudinally ribbed portlon 7. In two opposite walls 8, the ribbed portion 7 is provided with diametrically disposed apertures 10, the apertures 10 being nearer to the inner end of the ribbed portion than the apertures 9, for a purpose hereinafter set forth. I I

Disposed in the bore 6 of the main valve body 4, is the stem 11 of the priming valve body 12. The said stem 11 is provided at 13 with a longitudinal diametrically disposed slot.

At 14 is a pin secured, preferably by rivetlng, in one pair of apertures in the ribbed portion 7, and in the slot 13 of the stem 11, and at 15 is a cotter pin. Manifestly when the pin 14 is positioned as illustrated, and the cotter pin 15 is arranged as shown in the slot 13 and against the inner end of the ribbed portion 8, the priming valve body 12 will be held against endwise movement relatively to the main valve body 4, and consequently said priming valve body can be effectively and expeditiously ground incidental to turning of and pressure exerted on the main valve body 4.

Removably arranged in the chamber 5 of the valve body 4, and at opposite sides of the inner end of the stem 11, are collar sections 16; said collar sections 16 being semicylindrical and having ribs 17 at their far sides to seat in the circumferential groove 2 of the stem, so that the said collar sections will move endwise with the stem. In Fig. 7 I show collar sections 16 for use on the stem 1 when the collar sections 16 are removed; said collar sections 16' being de- I ent, is:

ordinary manipulation of the valve; 7 On the other hand, when thevalve is in use, the pin 14 effects connection of the prlming valve body 12 to the main valve body 4, in

such manner as to permit of the requisite play of the priming valve body relatively to the main valve body and vice versa, and that the said pin 14, after grinding of the main valve body 4 at the point 18, is adapted to be transferred from one pair of apertures in the ribbed portion 7 of'the body 4 to the other pair of apertures in said ribbed portion. i

It will be readily appreciated from the foregoing that the initial cost of my improvement is a reasonable one, and that by virtue of the improvement, the usefulness of the valve body 4 and the priming valve body 12 is materially prolonged, which is the end that I seek toattain.

In the practical use of my novel compound valve, it will be manifest that when the main valve body 4 is moved from its seat, the steam thereby admitted forces the priming valve body 12 to its seat, and that when the priming valve body 12 is unseated', this being'permitted by the capacity of the primingfvalve body 12 to move independently of the main valve body 4, the whole volume" of steam will be let into the in jector.

Byreference to F ig; 8 it will be readily appreciated that the front or small valve 12 is ground first, with the cotter pin 15 in place, and the main valve 4 is ground with said cotter pin 15 removed. All of the front parts are coupled together butareground separately in the injector 30.

It will be readily understood from the foregoing, that when the valve body 4 is ground at the point 18, the, pin 14 will be shifted from one pair of diametrical apertures in the ribbed portion 7 of "the valve body 4, to the other pair of diametrical apertures, so as to shorten the lift of the priming valve body 12, and in that way compensatefor the metaldisplaced at the point 18. From this it follows that the adjustable connection of the stem 1 to the main valve body 4, and the adjustable connection of the priming valve body 12 to the said body 4, both have to do with compens ation for the metal displaced at the po1nt18 when the valve body 4 is ground to take u'p wean Having described my invention, what-I claim and desire to secure by Letters-Pat- 1. Ihe combination of a main valve body havin a chamber in its outer end and a ribbe portion at its inner end, and also having a lon itudinal central bore or socket in the ribbed portion and pairs of opposite apertures in Walls of the ribbed portion, one pair of apertures being nearer than the other pair of apertures to the inner end of the ribbed portion; a priming valve body having a stem disposed in said bore or socket and also having a longitudinal diametrically disposed slot in said stem; a pin removably secured in one pair of apertures in the ribbed portion of the main body and extending through the slotin the stem of the priming valve body; a gland closing the chamber in the outer end of the main valve body; a stem movable through said gland and having a circumferentially grooved inertures in walls ofthe ribbed portion, one 7' pair of apertures being nearer than the other pair of apertures'to the inner endof the ribbed portion; a priming valve-body having a stem disposed in said bore or socket and'also having a longitudinal diametrically disposed slot in said stem; a pin removably secured in one pair of apertures in the ribbed portion of the mainbodyand extending through the slot in the stem of the'prim ing valve body; a gland closing the chamber in the outer end of the main valve body; a stem movable through said gland and hav ing a. circumferentially grooved inner'end portion in the chamber; and collar sections embracing the stem and disposed in "said .chamber and havinginterior'ribs seated in 3. The combination of a main valve body having a chamber in its outer enda portion adapted to be ground and also having 'a ribbed inner portion and a longitudinal socket in said ribbed portion; a priming valve body having a stem loosely arranged in said'socket; means connecting said stem 7 and the main valve body whereby-each is movable independently of the other; a'stem extending into the chamber in the outer end of the main valve body; andmeans removably secured to said stem in said chamber to compensate for grinding of the main valve body. v

4. The combination of a main. valve body, a priming valve body, means connecting the two whereby each is movable independently of the other, said means capable of adjustment to compensate for grinding, a stem, and means connecting the stem and the main valve body and adapted to be changed to compensate for grinding of the body.

5. The combination of a valve body having a chamber in its outer end, removable means to close said chamber, a stem extending through said removable means and circumferentially grooved, and collar sections disposed in the chamber and embracing the stem and having interior ribs seated in said circumferential groove.

6, The combination of a main valve body having a ribbed inner portion and pairs of apertures in said ribbed portion, one pair of apertures nearer the end of the ribbed port1on than the other and also having a socket in the ribbbed portion, a priming valve body having a stem and also having a longitudinal diametrically disposed slot in said stem, and a pin removably secured in one pair of apertures and extending through said slot.

In testimony whereof I affix my si nature.

THOMAS D. LEWIS. 

